rust/src/test/ui/issues/issue-50264-inner-deref-trait/option-as_deref_mut.rs

fn main() {
    let _result = &mut Some(42).as_deref_mut();
//~^ ERROR no method named `as_deref_mut` found for enum `Option<{integer}>`
}
renamed `inner_deref` feature's `deref()` methods `as_deref()` as per discussion https://github.com/rust-lang/rust/issues/50264 2019-04-01 14:08:19 -05:00			`fn main() {`
			`let _result = &mut Some(42).as_deref_mut();`
pretty: trim paths of unique symbols If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not. 2020-09-02 02:40:56 -05:00			//~^ ERROR no method named `as_deref_mut` found for enum `Option<{integer}>`
renamed `inner_deref` feature's `deref()` methods `as_deref()` as per discussion https://github.com/rust-lang/rust/issues/50264 2019-04-01 14:08:19 -05:00			`}`